Obama, Romney duel over China, immigration

"Romney also will vow to work with members of both parties to develop a permanent fix for America's immigration system, according to the excerpts of his speech, which provided no details.

"Like so many issues confronting our nation, when it comes to immigration, politics has been put ahead of people for too long,"

Romney will say in a dig at Obama. Romney has struggled in the past to frame his positions on immigration in ways that appeal to Hispanic voters as well as the conservative base of the Republican Party.

In December, Romney said he would veto the DREAM Act if he were president. He noted he would support a path to legal residency for those who served in the military, but not students and other young illegal immigrants included in the Democratic proposal blocked by congressional Republicans. He has since called for Republicans to offer their own version of the DREAM Act but provided few specifics of what it should contain."